DB> You using flat or coax cable? given the variation in frequency, 
 DB> coax is the only way to go. 
Coax doesn't necessarily represent an advantage at higher frequencies. 
It loses more signal per foot than twinlead and, the higher the frequency, 
the 
greater the loss.
The main advantage of coax is that it's shielded against electromagnetic 
interference. Twinlead is not and must be run a few inches away from metal.
Twinlead is often unsuitable for non-broadcast signals like vcr or cable-tv 
because of its tendency to act as an antenna. Thats why cable TV uses cable.
Half-wavelength bits of leftover twinlead did make a not-half-bad substitute 
for "rabbit ears" after the freezing rain knocked cables down. Just short 
both ends and cut the wire in the middle to connect it to the antenna 
terminals.
If you're using a booster _before_ the coax run, you can afford the signal 
loss. If not, you'll want to avoid long coaxial lines as they weaken signals.
And then there's the minor detail of the need for matching transformers...
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